The Minky dubbing is described as "pure mink underfur blended with a touch of sparkle, matched to the best dry fly colors. Wapsi manufactures the dubbing and it comes in 24 colors. The pack I have is Light Cahill (very nice color too) so the fur must be bleached from its normal hue. Sorry, should have looked at the back of the pack before I posted, but then again, that would have suggested forethought and planning. 8T